/*
 * <<
 *  Davinci
 *  ==
 *  Copyright (C) 2016 - 2019 EDP
 *  ==
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *        http://www.apache.org/licenses/LICENSE-2.0
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 *  >>
 *
 */

package edp.davinci.service.excel;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;

import org.slf4j.Logger;

import com.google.common.util.concurrent.ThreadFactoryBuilder;

import lombok.extern.slf4j.Slf4j;

/**
 * Created by IntelliJ IDEA.
 *
 * @Author daemon
 * @Date 19/5/29 20:14 To change this template use File | Settings | File Templates.
 */
@Slf4j
public class ExecutorUtil
{
    
    public static final ExecutorService WORKBOOK_WORKERS =
        Executors.newFixedThreadPool(4, new ThreadFactoryBuilder().setNameFormat("workbook-worker-%d").setDaemon(true).build());
    
    public static final ExecutorService SHEET_WORKERS =
        Executors.newFixedThreadPool(16, new ThreadFactoryBuilder().setNameFormat("sheet-worker-%d").setDaemon(true).build());
    
    public static <T> Future<T> submitWorkbookTask(WorkbookWorker worker, Logger customLogger)
    {
        printThreadPoolStatusLog(WORKBOOK_WORKERS, "WORKBOOK_WORKERS", customLogger);
        return ExecutorUtil.WORKBOOK_WORKERS.submit(worker);
    }
    
    public static <T> Future<T> submitWorkbookTask(WorkBookContext context, Logger customLogger)
    {
        return ExecutorUtil.submitWorkbookTask(new WorkbookWorker(context), customLogger);
    }
    
    public static <T> Future<T> submitSheetTask(SheetWorker worker, Logger customLogger)
    {
        printThreadPoolStatusLog(SHEET_WORKERS, "SHEET_WORKERS", customLogger);
        return ExecutorUtil.SHEET_WORKERS.submit(worker);
    }
    
    public static <T> Future<T> submitSheetTask(SheetContext context, Logger customLogger)
    {
        return ExecutorUtil.submitSheetTask(new SheetWorker(context), customLogger);
    }
    
    public static void printThreadPoolStatusLog(ExecutorService executorService, String serviceName, Logger customLogger)
    {
        ThreadPoolExecutor executor = (ThreadPoolExecutor)executorService;
        Object[] args = {serviceName, executor.getKeepAliveTime(TimeUnit.SECONDS), executor.getPoolSize(), executor.getQueue().size(), executor.getTaskCount(),
            executor.getCompletedTaskCount()};
        log.info("{} keep alive time: {}, poolSize：{}, waiting queue size: {}, task count: {}, completed task size: {}", args);
        if (customLogger != null)
        {
            customLogger.info("{} keep alive time: {}, poolSize：{}, waiting queue size: {}, task count: {}, completed task size: {}", args);
        }
    }
}
